EP 3279673 A1 20180207 - MOTOR TORQUE RIPPLE REDUCTION USING DC BUS HARMONICS
Title (en)
MOTOR TORQUE RIPPLE REDUCTION USING DC BUS HARMONICS
Title (de)
MOTORDREHMOMENTWELLIGKEITSREDUKTION MIT DC-BUS-OBERSCHWINGUNGEN
Title (fr)
RÉDUCTION D'ONDULATION DE COUPLE MOTEUR AU MOYEN D'HARMONIQUES DE BUS CC
Publication
Application
Priority
US 201615226220 A 20160802
Abstract (en)
A method and system of reducing/eliminating ripple in an electric motor. An electric parameter, such as current is sensed in an input electric signal. Ripple is detected in the signal using one or more current sensors and a discrete Fourier transform calculation. Ripple is reduced by adjusting the electric signal being sent from a drive control to an electric motor, using a closed-loop configuration. The electric motor might be a regenerative electric motor that is configured to sink or supply electricity to a power grid.
IPC 8 full level
G01R 15/18 (2006.01); H02P 6/10 (2006.01); H02P 29/50 (2016.01)
CPC (source: CN EP US)
G01R 15/183 (2013.01 - EP US); H02P 6/10 (2013.01 - EP US); H02P 6/14 (2013.01 - US); H02P 6/34 (2016.02 - US); H02P 23/04 (2013.01 - CN); H02P 27/06 (2013.01 - US); H02P 29/50 (2016.02 - CN EP US)
Citation (search report)
- [XYI] EP 1396927 A1 20040310 - DAIKIN IND LTD [JP], et al
- [XYI] EP 2667503 A1 20131127 - DAIKIN IND LTD [JP]
- [Y] EP 1067391 A1 20010110 - TDK CORP [JP]
- [A] WO 2013038176 A2 20130321 - METROIC LTD [GB], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3279673 A1 20180207; EP 3279673 B1 20230927; CN 107681942 A 20180209; CN 107681942 B 20230414; US 2018041147 A1 20180208; US 9912266 B2 20180306
DOCDB simple family (application)
EP 17184210 A 20170801; CN 201710649398 A 20170801; US 201615226220 A 20160802